body{
    background-color: #ddd;
}
.container{
    margin-top: 40px;
    padding-top: 20px;
    padding-bottom: 50px;
    background-color: #fff;
    border-radius: 20px;
}
.header{
    text-align: center;
    margin: 10px auto;
    letter-spacing: 2px;
    font-family: "微软雅黑";
}
.main{
    width: 880px;
    height: 400px;
    margin-left: 10%;
    margin-top: 50px;
}
.main-left,.main-body,.main-right{
    float: left;
    height: 100%;
}
.main-left,.main-right{
    width: 15%;
    padding-top: 40px;
    text-align: center;
}
button[type="button"]{
    width: 100px;
    height: 40px;
    margin: 20px auto;
    font-size: 18px;
    cursor: pointer;
}
.main-body{
    width: 70%;
}
.content{
    border: 1px dashed #000;
    margin: 25px 10px;
    height: 85%;
    padding: 5px;
}
.four-row{
    font-size: 18px;
}
table{
    text-align: center;
}
.error,.warnning{
	color: #f00;
}














/*  */
